Reticulocyte Count

How to Cite This Chapter: Don-Wauchope A, Chetty VT, Ivica J, Kavsak P, Khan WI, Lafreniere M, Nouri K, Solnica B. Reticulocyte Count. McMaster Textbook of Internal Medicine. Kraków: Medycyna Praktyczna. https://empendium.com/mcmtextbook/chapter/B31.1269.3.7.27.9. Accessed May 26, 2024.
Last Updated: May 9, 2022
Last Reviewed: May 9, 2022
Chapter Information

For a brief introduction and guide to abbreviations, see Laboratory Tests: General Remarks.

Analyte [material]

Reticulocyte count

Reference range, target level, or decision threshold

20,000-100,000/microL (20-100 Giga/L)

0.5%-1.5%, ie, 5‰-15‰ of erythrocytes

Interpretation of results

↑ Hemolytic and acute posthemorrhagic anemias, supplementation after treatment (iron, folic acid, vitamin B12, erythropoiesis-stimulating agents, after hematopoietic stem cell transplant), after splenectomy

↓ Severe anemia due to decreased erythropoiesis in bone marrow, particularly aplastic anemias and aplastic crises in hemolytic anemias

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